Pressure-regulating valve



June 14,1927. 1,632,406"

W. C. HEYDECKER. JR

PRESSURE HEGULATING VALVE 2-Sheets-Sheet 1 Filsac June 22 .1926

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W. C. HEYDECKER, JR

l PRESSURE REGULATING VALVE "2 Sheets-Sheet 2 Filed June 22. 1926 IPatented June 14, 1927.

111211K@ STATES 1 ienne Parent erricr.;

W'ILLXAVI C. BEEE'ZDECKER, JR., OF NEW' YORK, N. Y.

Application filed .Tune 22, 1926.

This invention relates breiully to, valves for regulating pressure butmore particularly to valves ior reducing and controlling the pressureoit the flow ci oxygen 'from oxygen tanks. i. the medical profession,oxygen isnow given by injecting it into the skin o'l' the patient and itbecomes et the utmost importance that the pressure be reduced to aminimum and always be under control.

It is a primary object ot my present invention to'provide a very simpl-eand compact valve construction which is positive and reliable in itsfunctional operation and capable ot very tine adjustment.

It is also an object or my present invention toprovide a. novel pressureregulating valve so constructed and arranged as to allow for the readyexamination, removal and replacement et the parts thereof with# outAremoving the valve from the pipe line or dismantling the same to anyextent.

Other objects andadvantages oit my present invention will be apparentfrom the description to follow taken in connectionwith the accompanyingdrawings wherein*- Figure 1 is an enlarged vertical sectional vi-ew of acasing embodying my present invention, certain of the parts being shownin elevation.

Figure 2 is an enlarged top plan view with the cover removed.

Figures 3, 4 and 5 are detail perspective views of the several operativeparts of the valve mechanism in detached position.

Referring to the drawings in detail, a

cylindrical casing formed of brass or` other suitable metal is providedwith an inlet pipe 11 leading Jfrom a suitable source of supply (notshown) ot oxygen and an outlet pipe 12 leading to an apparatus (notshown) used by the operator for injecting` the oxygen. The flow ofoxygen in the pipe 11 is usually ot great pressure and it the purposeoit' the present invention to regulate such flow so that upon leavingthe pipe 12, said pressure will be greatly reduced and under positivecont-rol. As will be seen trom Figure 1, the inlet pipe 11 leads to analigned passageway 13 extending to substantially the center et Vthecasing and the outlet pipe 12 communicates with an align-ed passageway141, said passageways 13 and 141 being substantially otthe same diameter`as the pipes 11 and 12, respectively.

PRESSUREREGULATING VALVE.

Serial N0. 117,712.

'The upper end ot the` casing l() is closed by a suitable brass cover 15Yformed with an enlargement or upstandinginternally screw threaded boris16 to receive the external screw threaded portion. oit' the screw 17,said screw 17 being provided with ahand wheel or knurled knob 18 :lorconvenience in turning the same. Said cover 15 `is secured to the bodyvof the tank 10 by means of a ring 19 formed with an inwardly eX- tendingflange 20 which is adapted to en gage an outwardly extending `tlange 21formed on the cover liwben Hip, ring 19 1S screwed down so that theinternal screw threads 22 on the ring 19 'engage the external screwthreads 23 on the tank.

Dividing the casing 10 into two' co1npartments or chambers, an upperchamber 241 and a lower chamber 25, is a diaphragm 2G to 1ined with aplurality o1 corrugations 27 for the purpose of giving the necessaryflexibility and strength to the same. diaphragm 26 seals the lowercompartment and is provid-ed with a centrally disposed opening which issealed by a disk 2S termed with a downwardly extending lug 29 and anannular liange 30, the bot-tomvend of said lug 29 being dished out tor apurpose which will be explained. Positioned directly above said disk 28but removed from the same is a centering disk 31 ouned with an annularflange 32, the upper surface of said disk 81 being dished out at itscenter to receive the pointed end of the screw 17 as will be seen fromFigure 1.

Between said disks 28 and 31 is disposeda spiral spring V33, the lupperterminal of said spring engaging the `under surface ot' the flange 32 ofthe disk 31, and its lower terminal engaging the upper surface or" theflange 80, said spring' tending to hold the disks and their associatedparts away from each other. The outer edge of the diaphragm 26 rests ona gasket 341- which is seated in a cutout portion of the upper edge o1the casing. The spring 33 allows the diaphragm 27 to raise when thepressure in the lower chamber is sutlicient and in this mann-er thevalve is allowed to automatically close or partially close thus maintaining a constant unvarying pressure in the outlet 12. y

As will be seen from the lower portion Vot Figure 1, thepassageway 13adjacent its innermost extremity communicates with an This t internallyscrew threaded opening which is disposed at right angles tosaidpassageway 123. lnto this opening 35 is positioned a screw 36 providedwith a restricted opening 37 through its Mbody portion, Vand formed witha flange portion 38 and an upwardly extending boss portionBQ',4 forminga valve seat. lilhen theiscrew 36 is in oper-p` ative position, itsflange 38 rests against the io'or ot the casing asin Figure l.

Mounted on the floor oi'the casing l() is al substantially flat metalplate 40 rectangular in shape. This plate 40 is positioned on the floorin a plane at right angles to the planeI rof the passageways i3 and 14and is secured to said floor by means of screws 4l 'passing f throughholes 42 :torined in the plate, and

aligned holes (not shown)' formed in the iloor ofthe casing. *In ythecenter of said 'plate40 is ormedian openingi43 wherein the flangeVportion-384erc the screw 36 isl disposediwheii the said screwis inoperative i bearing blocks 44 is a shaft 4". one endA oi f position asshownin Figure l. It will be noted thatthe diameter of this opening 43is slightly larger :than the dia-meter ot said flange portion 38in'orderV to permit ot the ready insertion and lwithdrawal of saidy'sa-id shaft v47 'being' screw threaded and adapted to engage theinterinil'screw threads Vin theblock 44 provided thcreivith.lostioiiediin the'block 44 provided with'the internal screw threads andadaptedftoengage the :opening in the screw threaded end ot the i shaft47 is a4 screwV 4S. prevents relative vmovement between the blocks 44and theshatti47. It will -be noted that thelprojecting -end o'tsaidshattl47 isslotted tor'the ready turning ol said shaft by means'ot'- asuitable tool.

Referring' more aarticularlv to' F irfure` it a rocker member '44,mounted lon the `shaft 47 carried by the rbloclrs'44 and Vvis positionedbetween said blocks'44,eaid member44 being in Aa pla-ne 'at right anglesto the plane ot si sposed tlie plate 40. frlliis ioclierineinber 44coinp isesa ilatwportion 45lorrncd` with a screw 'threadedopening 46andintegral Acan poi'- =tions 47 depending from said flat portion 45,

'said' ear portions: 47 beingprovided with bosses 48 formed withopenings therethroughtoaccommodate shaft 47. ,Formed :integrallywithsaid flat portion 45 is a .re- Y Acessed `portion 49` having a`centrally disposed screw threaded opening 50; and

ysmall vgroove there illustrated, is-

formed integrally with said recessed portion "49 is a reduced bifurcatedportion 5l, said bifurcated portion 5l being provided with alignedopenings 52.

Referring again to Figure l, positioned in the ,opening 50 o' therecessed portion 4i) is a screw `53`with a curved top 54 centrallyslotted-tortlierec-eption et' a tool ot any desired type. lFormed in thelower end et the body of said screw 53 is a dished out or recessedportion 55 and mounted in .said recess 55 is a rubber pluo 56, which isadapted to .impinge and press aga-inst the seat provided by the upperllat surface oit the npstanding boss 39 et the screw 36 to close theopening 37 thereby preventing oxygen trom passing through. Y

Inithe opening46 oit the 'flat portion 45 of the rocker member ismounted a screw 57 having alnob` 58 and carrying a disk 59 at its lowerend. Mounted on one side yof the shaft 47 and positioned between saidcentering dish 59v-and theif'loor of the tank is a coiled compressionspring 50, one terminal Vthereoi1 engaging the disk 59 and the otherbeing seated inA a recess 6l formedv in the iloor ofthe tank. Thisspring 60 normally tends to puslrthe. flatrportion 45 ofthe rockermember 44 upwardly and the recessed Vportion 49 downwardly carrying thescrew 53 along- 'and pressing the rubber plug 56 against its seat on topot the `sciew`3t'5to close they opening 37 in said screw 3G.

Positioned in the openings 52 ot' the bifurcated/portion 51 is a pin 66and loosely 'mounted on said pin G6 is an arm v67 formed with a knifeedge. y

Ailsomounted `on the floor of the tank l0 in the same plane as therocker member 34. vis a-lever member=68 (Figure 5). VThis lever member68 comprises ayliase portion 69, and

- a pair of upwardly 4and outwardly curved garms 70 iornied integrallytherewith, `the said `arms 70 terminating in an integrally formed head7l, concave-convex; in shape. Formed in the lcenter ot said base @Sie7:2 ands adjacent cach end oit said base y59v is screw vthreaded opening7f3. Mounted in each ol' said openings 7?) when the lever isvinoperative p `"tion is u screw 74k provided with av poin ed end. Thispointed/end ot the screw 74Ais adapted to fit inagroove 75 inachii'iedinthetloor of the tank l0, said groove 75 being'slightly larger than thepointed end ot the screw 7,- to perinitvailittlefplay between the saidpointed vend and thetsidesot the said groove 75.

As will'be seen Vtroni Figure l, when the 4rocker member 44 and thelever member 68 are in operative position, the bifiucated portion 5l oi"Ythe rocker ineinber 44 is posittionedinthe *opening formed between therms 70 ofthe lever meinber, thus locat ing said biturcated .portion 5ldirectly above the base portion 69 of the lever G8 so adapted to snuglyengage the said top 54h When the lever 68 is in this position, the lowerend of the extension ol; the disk engages the upper surface oi said head7l..

ln operation, oxygen is admitted to thel inlet il from any smirce ofsupply and the outlet l2 in comnuinication with any fde- :sii-aapparatus through which it is desired to supply o:-;vgen. By reason ofthe upward urge oi' the spring 62 against the flat portion lo oi therocher `member 4:4, the plug 5o carried by the screw 53 is normallypressed against the valve seat on top of the screw 36 thereby closinglthe opening 37 in said screw 36 and prei/'renting any liow of Xyp'l'l.

through the opening 37, the screw 17 is set upon which tends to compressthe spring 33 and force the disk 28 downwardly against the head 7l ofthe lever 68. rThis downward thrust against the head 7l rocks the member68 .around its ulcrnm represented by the point of the screw 74 therebyraising the base 69, which, by reason oi the arm 67, carries thebii'urcated portion v5l and the recessed portion 49 upwardly therebyraisingl the plug 56 oit its seat on top of the screw 36. It will beobvious that by reason oi' the arrangement of the parts and the fulcrumaction of the parts a very fine adjustment is afforded.

liVhen the chamber is full of oxygen, ihe pressure therein raises thediaphragm 27 with its dish QQ'thereby relieving the downward pressure onthe head 7l permitting the base 59 to be lowered which results in thelowering of the rocker member 44 with its plug. As the pressure in thesaid chamber 25 recedes by reason oi the supply in the supply tankbecoming diminished, the screw 33 forces the diaphragm 27 downwardly sothat pressure is exerted on the head Ti forcing it downwardly and thememlier all upwardly with its plug 56, thus automatically keeping theflow constant.

It will now be apparent that I have devised a novel and useful pressureregulating valve embodying many .advantageous features and while I have,in the present instance, shown and described only the preferredembodiment of my invention which will be found in practice to givesatisfactory and reliable results, it is to be understood that theembodiment described is susceptible oi? modification in various particu-To remove this plug 56 from its lseat and thus permit the How of oxygenlars without departing from the spirit or scope oi5 the invention orsacrilicii'ig ,any of its advantages. i

I claim: i l A pressure regulating valve con'iprising Va casing formedwith a con'inininicating inlet and outlet, a rocher member positioned inalio'nment with said communication, a screw vali-fe carried by saidroclrcr member at its center, a 'lever mounted in alignment with saidrocker n'ieinber, the free end or' said lever being positioned directlyabove and in ,alignment with said screw valve, and a screw operativelyconnect-ed to said lever and mounted directly above and in align nientwith said lever, .rocher member and lscrew'valve whereby said screwvalve is positi vel y' operated.

52. ,lu a pressure regulating valve,`a casing having communicating inletand outlet openii'igs, a valve seat positioned between said openings, abearing block mounted on either side olf said valve seat, a shaftmounted in said blocks, a rocker member mounted on said shaft inalignment with said valve seat, said rocker member comprising a flatportion, a recessed portion formed integrally therewith, said recessedportion having an opening tl erein and a bifurcated portion formedintegrally with said recessed portion, a screw mounted in the openingVin said recessed portion and in alignment with said valve seat, arubber plug mounted in the end of said screw, said .plug being adaptedto engage the said seat and a coiled spring mounted between theflatportion of said rocker member and the floor of the casing andnormally urging said flat portion upwardly and rubber plug downwardly onits seat, and a lever operatively connected to said rocker member' torock the same on its shaft, and a screw operatively connected to saidlever to actuate said lever.

3. A pressure regulating valve comprising a casing formed with aninletand outlet, a valve seat positioned between said inlet and outlet, abearing block mounted on either side of said kvalve seat, a shaftcarried by said blocks, a rocker member mounted on said shaft, saidrocker member comprising a fiat portion, a recessed portion and a bi:turcated end portion, a coiled spring positioned on one side of saidshaft and adapted to engage the flat portion of said rocker member torock the same on its shaft, a screw valve carried by the recessedportion oi' said rocker member adapted to engage said valve seat, alever operatively connected to the bifurcated end portion of said rockermember and a screw operatively connected to said lever to actuate thesame.

4. A pressure regulating-valve comprising a casing having an inlet andan outlet, a valve seat positioned between said inlet and outlet, abearing block` mounted on either lll() iis' Vatl'-said rocker memberonsaid shaft whereby isaid `rubber plug enga-ges said valve seat,` a`

' a yrecessed portion having a centrally dis-A i, posed opening `andafbifuroated end portion, 1 a pointed arm mounted loosely on sald b1-vuroatedend portion, a screw mountedy in the opening` in said recessedportion, said screwv 30' Jformed with a recess in itsfend, a rubber .iplug mounted in said `last named recess and positioned in alignment withsaid valve seat, a'eoiled spring engaging said rocker member a pointoutsidepsaidshaft adapted to rook Clever Vmeinber adapted to moveV saidrocker member away from the valveseat; said lever member consisting of abase mounted on pointed serewsloosely mounted in the oasing, a1 pair ofupwardly and outwardly Curved arms formed integrally'withrsaid base andhead 4formed integrally with said arms, said rocker member andfs'aidlever member being-so positioned relatively that the. head ot said levermember is positioned above and engages-the reeessedportion of saidrocker member and the base oft-he'lever is posi- 'tioned underneath thebiturcated end por tion of said rocker member whereby movement of thelever member is imparted to the roeker member` and a'regulating screwoperatively eonneeted'to thefhead of said lever wmember Wherebysaidlever member is ao- =tuated.r

'aliixe d my signature.

'VILLIAM C. HEYDECKER, Jn.

